All the camera values are absolute; not relative. It will only take into acound current values to determine the shortest way to reach destination.
Absolute: Based on point zero (0,0,0)
Relative: Based on last coordinates

All numbers are suggestions and by no means you must use only those. Anything can range from -32768 to 32767.
For the sake of simplicity, all words don't have their bytes swapped to avoid confusion when hex editing.

Go take a look at the maps sections to help yourself when you want to determine coordinates or the like. By the way those maps were all taken at 30º; except the first one at 90º.

2- Move on Z axis

Similarly to the X & Y, 1h is 12 pixels high, or 48 units high when using the camera.
Centering is the determined by given height +2h (48*2=96), which is technically not correct as most units are 3h high (48*3=144) so if you want "perfect" centering, you have to subtract 1/2h (40/2=24).
00048(x3000) = 1h (centers 3h)
00192(xC000) = 4h (centers 6h)
00384(x8001) = 8h (centers 10h)

I will directly add the +2 height in my calculations.
So basically the camera starts at (3.5, 1.026, 12.5), 26.54º angle, 45º/-315º [Map_4], 0º rotation, 100% zoom and camera has already moved so time is not important.
and it ends up at (0.5, -1.536, 16.167), 16.7º angle, 29.53º/-330.47º, 0º rotation, 200% zoom all that during 1.6 seconds

Let's now see what the camera will actually do
0.5 - 3.5 = Move -3x
- 1.536 - 1.026 = Move -2.562y
16.167 - 12.5 = Move 3.667z
16.7º - 26.54º = lower angle by 9.84º
29.53º - 45º = rotate around by 15.47º anti-clockwise
0º - 0º = no change
200% - 100% = +100% zoom increase
All that will be done during 1.6 seconds. Everything will start at the same time and end at the same time.